Java Math BigDecimal.setScale() 方法

package com.codingdict;



import java.math.*;



public class BigDecimalDemo {



   public static void main(String[] args) {



      // create 2 BigDecimal Objects

      BigDecimal bg1, bg2;



      bg1 = new BigDecimal("123.126");



      // set scale of bg1 to 6 in bg2

      bg2 = bg1.setScale(6);



      String str = "The value of " +bg1+ " after changing the scale to 6 is " +bg2;



      // print bg2 value

      System.out.println( str );

   }

}